While flying in mountainous terrain, the pilot was manoeuvring close to terrain and struck the ground at slow speed, with the aircraft in a nose-down attitude, possibly after a stall. The pilot's lack of experience in mountain flying likely caused him to misjudge how close to the terrain he could safely fly. The strong wind from the southeast may have been a factor.Findings as to Causes and Contributing Factors While flying in mountainous terrain, the pilot was manoeuvring close to terrain and struck the ground at slow speed, with the aircraft in a nose-down attitude, possibly after a stall. The pilot's lack of experience in mountain flying likely caused him to misjudge how close to the terrain he could safely fly. The strong wind from the southeast may have been a factor.